Toyota Yaris: Sfi System / Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS
HINT:
Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the GTS when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.
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Clear the DTCs.
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Change the ECM from normal mode to check mode using the GTS.
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Perform a simulation test.
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Check and wiggle the harness(es), connector(s) and terminal(s).
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CAUTION / NOTICE / HINT HINT: *: Use the GTS. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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2. CUSTOMER PROBLEM ANALYSIS
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CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem...
Other information:
INSPECTION PROCEDURE 1. INSPECT FOG LIGHT ASSEMBLY LH (a) Check that the fog light assembly LH. (1) Apply auxiliary battery voltage to the fog light assembly LH and check that the light comes on. OK: Condition Specified Condition A104-2 (B) - Auxiliary battery positive (+) A104-1 (E) - Auxiliary battery negative (-) Fog light assembly LH comes on If the result is not as specified, replace the fog light assembly LH...
DESCRIPTION If air does not flow from the front registers after the blower switch on the air conditioning control assembly is operated, the following factors may be the cause. Symptom Factor Blower motor does not operate at all
(Air does not blow from registers)
Harness or connector
Air conditioning amplifier assembly malfunction
Blower motor with fan sub-assembly malfunction
Warm-up control
Engine coolant temperature sensor malfunction
PROCEDURE 1...
Categories
Stop the vehicle completely.
Manual transaxle:
Shift into neutral and set the parking brake.
Automatic transaxle:
Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is
off.
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